Last week, AT&T announced that they're throttling the data speeds on unlimited accounts for the top 5% of cellular data users. While there is still no limit to the amount of data that can be used, can the plan truly be called unlimited if it's so slow that you wouldn't really want to use it in the first place? AT&T isn't the first company to do this, of course. T-Mobile offers tiered data plans with no overage charges, but instead throttles your data if you go passed your limit. This didn't exactly cause an uproar, and begs the question of whether or not the right marketing can make the difference.